Car-roof.



F. M. WHYTE.

CAR ROOF. APPLICATION FILED NOV-1,1917.

Patented Apr. 8, 1919.

the carline.

UNITED STATMENT OFFIGE. y

FREDERICK H. mm, .01 TABBYTOWN, NEW YORK, ASSIGNORTO HUTCHINS CAR ROOFING COMPANY, .OF DETROIT, MICHIGAN, AVORPORATION OF MICHIGAN.

can-noon.

Specification of Letters Patent.

Patented Apr. 8," 1919.

Application filed November 1, 1917. Serial No. 199,739.

To all whom it may concern: v

Be it known that I, FREDERICK M. WHYTE, a citizen of the-United States of America, residing at Tarrytown, in the county of Westchester and State of New York, have invented certain new and useful Improve-v ments in Car-Roofs, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to car roofs, and has more particular reference to the construction of the carline, and to the peculiar combination therewith of weather-proofing means for the roofing sheets, as hereinafter set forth.

In the drawings:

Figure 1 is a longitudinal section through a portion of the car roof;

Fig. 2 is a cross-section on line wm Fig. 1. Fig. 3 is a, perspective view of a carline. A is a carline, formed from pressed sheet metal, and of a channel section, the web portion extending in a vertical plane and the flanges extending laterally. The lower flange B of the carline is preferably straight from eave to eave of the car, while the upper.

flange C is bent to conform to the desired pitchof the roof. D are purlins, formed in short sections extending from carline to carline, and supported upon and secured to the lower flange B on the channel side of The opposite ends of these purlin sections are supported upon shelf flanges E, which are struck out from the web of.

the carline to extend oppositely from the flange B. Any suitable securing device may he used for attachment of the purlin sections to the carline, such as the bolts F, as shown.

The carline as above described may be used with various constructions of roofing sheets, but I have shown a construction in which each sheet is rigidly attached to a carline at one edge and has a weather-proof connection with another carline at its opposite edge. Specifically, G are the roofing sheets which span the spaces intermediate car-lines and are supported upon the purlin sections D. The opposite edge portions of these sheets are provided with upstanding flanges H and H, which in connectionwith carline caps I form a weather-proof 3o1nt. Preferably the cap I is rigidly attached to one sheet by rivets J, and is riveted or otherwise rigidlysecured to the top flange G of the carline, as indicated at K. The opposite edge of the cap I is provided with a foot flange L extending over the sheet G, while a flange M riveted to said sheet and overlapping the flange L assists in excluding the Weather.

In use, the roofing sheets are permitted to move relatlvely to each other to compensate for weaving and flexing of the car {frame, and at the same timeeach sheet is rigidly. attached at one edge thereof to one carline, while the opposite edge is firmly held down by the carline cap. The carline caps may be riveted to the sheets before assembly in the roof structure, while attachment to the carline is performed after the sheets are laid in position. This attachment is facilitated by the construction of the carline, the laterally opening channel of which provides access for the riveting operation.

What I claim'as my invention is: I y 1. In a car roof, a carline comprising a channel beam having a vertically-arranged Web portion and laterally-extending flanges, the upper flange conforming to the pitch of the roof, purlins extending between carlines and having one end" thereof supported upon the lower flange of said carline, and a flange struck out from the web portion of said carline forming a support for the opposite end of the purhn.

2. In a car roof, a carline formed of a channel beam having a vertically-arranged web and laterally-extending flanges, the upper flange conforming to the pitch of the roof, a flange struck out from said webvto form a su port extendin oppositely from the lower flange of the car inc, and a purlin extending between adjacent carlines, one end of said purlin resting upon the lower flange of the carline and the opposite end resting upon the struck-outflan'ge of the carline.

3. In a car roof, a carline in the form of a channel beam having one flange thereof conforming to the pitch of the roof and the other flange rectilinear, a portion of the web of said carline being struck-out to form a flange extending'oppositely from the lower flange of the carline, for the purpose described.

4. In a car roof, a plurality of carlines, roofing sheets extending between carlines and provided with upstanding flanges at their opposite edges, a carline cap embracing the carline and the upstanding flanges of adjacent sheets, said cap being rigidly attached to the oarline and to one of the sheets and forming a. holding-down means for the other sheet.

5. In-a car roof, a plurality of car-lines,-

roofing sheets extending between carlines having an upstanding flange at one edge adjacent to a carline, and a carline cap rigid with the opposite edge of said sheet, embracing the cal-line and upstanding flange of an adjacent sheet, said cap being rigidly attached to thecarline and forming a holding".

down means for the adjacent sheet.

6. In a car roof, a carline comprising a ehannelbeam having a vertically-arranged 'web portion and laterally-extendingflanges, 

